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The AEM Bosch LSU 4.2 wideband UEGO replacement sensor is a sensor‑only kit that includes the sensor with attached cable and male connector for use with AEM wideband controllers. Each sensor contains a laser‑etched, calibrated resistor specific to that unit and is laboratory‑calibrated to approximately 0.1 AFR. When used with a compatible AEM controller it does not require free‑air recalibration, and housings are sealed against automotive fluids.
AEM Bosch UEGO Replacement Sensor
